This paper provides an overview on the main additive manufacturing/3D printing technologies suitable for many satellite applications and, in particular, radio-frequency components. In fact, nowadays they have become capable of producing complex net-shaped or nearly net-shaped parts in materials that can be directly used as functional parts, including polymers, metals, ceramics, and composites. These technologies represent the solution for low-volume, high-value, and highly complex parts and products.

Overview on Additive Manufacturing Technologies

Critical review of energy storage systems

Electronics cooling with nanofluids: A critical review

Thermal and flow analysis of microchannel heat sink (MCHS) cooled by Cu–water nanofluid using porous media approach and least square method

Review of tri-generation technologies: Design evaluation, optimization, decision-making, and selection approach

Thermodynamic and economic investigation of a novel integration of the absorption-recompression refrigeration system with compressed air energy storage (CAES)

Simulation and optimization of multi effect desalination coupled to a gas turbine plant with HRSG consideration

Multi-objective optimization of a cogeneration plant for supplying given amount of power and fresh water

Exergy, economic and environmental evaluation of an optimized hybrid photovoltaic-geothermal heat pump system

Present investigation deals with appraising heat transfer enhancement of single phase microchannel heat sink (MCHS) by ultra fine Cu particle incorporation in base coolant fluid. The particle diameter is of nanometer size and base fluid in combination of nanoparticles is called nanofluid. Governing equations for fluid flow and heat transfer are based on well established “porous medium model” and accordingly, modified Darcy equation and two-equation model are employed. Appropriate equations for both fluid flow and heat transfer are derived and cast into dimensionless form. Velocity profile is obtained analytically and in order to solve conjugate heat transfer problem a combined analytical–numerical approach is employed. For heat transfer analysis, thermal dispersion model is adopted and latest proposed model for effective thermal conductivity – which considers the salient effect of interfacial shells between particles and base fluid – is integrated into model. The effects of dispersed particles concentration, thermal dispersion coefficient and Reynolds number are investigated on thermal fields and on thermal performance of MCHS. Additionally, the impact of turbulent heat transfer on heat transfer enhancement is considered.

Evaluation of Heat Transfer Augmentation in a Nanofluid-Cooled Microchannel Heat Sink

Cyrus Aghanajafi

Papers

Thermodynamic and economic investigation of a novel integration of the absorption-recompression refrigeration system with compressed air energy storage (CAES)

Simulation and optimization of multi effect desalination coupled to a gas turbine plant with HRSG consideration

Multi-objective optimization of a cogeneration plant for supplying given amount of power and fresh water

Exergy, economic and environmental evaluation of an optimized hybrid photovoltaic-geothermal heat pump system

Evaluation of Heat Transfer Augmentation in a Nanofluid-Cooled Microchannel Heat Sink